Water

• Dipole moment is determined by magnitude of molecule charges and the distance between them
• Hydrophilic interactions are charged and polar
• Hydrophobic interactions are uncharged and non polar
• What are amphipathic interactions?

  Polar region forms hydrogen bonds with water while non polar region interacts with itself
• How does kinetic energy cause surface tension?

  The water molecules are in constant random motion
• How does water molecules pulling in all directions impact surface tension?

  Forms hydrogen bonds
• What intermolecular forces do the air-water interface experience to create surface tension?

  Sideward and downward forces
• Diffusion - molecules or ions in solution go from regions of high to regions of low ion concentration
• The process of water moving from a region of higher to lower concentration through a water-permeable membrane iscalled osmosis